King Size Snickers are on their way out: Mars Inc., the company that makes chocolate candy bars like Twix and Milky Way, plans to halt production of any chocolate product with more than 250 calories per serving by the end of 2013.

Spokeswoman Marlene Machut said the plan to stop shipping any chocolate product that exceeded 250 calories per portion by the end of 2013 was part of Mars’ “broad-based commitment to health and nutrition.”

As part of a “broader push for responsible snacking,” the company has also vowed to reduce sodium by 25 percent in all its products by 2015.